Question

Area of rectangle is 20m^2. If the perimeter of rectangle is 20m find the length and breadth

Answer 1

area of rectangle= l*b

l*b=20

perimeter of rectangle=2(l+b)

2(l+b)=20

l+b=20/2

l+b=10

l=10-b

putting value of l

10-b*b=20

10-b^2=20

-b^2=10

b=√-10